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- Treatment of groundwater contaminated by arsenic using iron oxides/hydroxidesPublication . Azevedo, Irene; Silva, Maria Aurora Soares; Freitas, Olga; Figueiredo, Sónia; Ferreira, Adelaide; Fiúza, António
- In-situ removal of arsenic from groundwater using permeable reactive barriers with iron based sorbentsPublication . Fiúza, António; Silva, Aurora Futuro; Silva, Maria Aurora Soares; Ferreira, Adelaide; Guimarães, Fernanda
- Arsenic removal using synthetic adsorbents : kinetics, equilibrium and column study [Abstract]Publication . Silva, Aurora; Freitas, Olga; Figueiredo, Sónia; Vandervliet, Bie; Ferreira, Adelaide; Fiúza, António
- Operating conditions for the treatment of groundwater contaminated by arsenic using iron oxides/hydroxidesPublication . Silva, A.; Freitas, Olga; Figueiredo, S.; Azevedo, Irene; Ferreira, Adelaide; Fiúza, António
- A systematic review of sustainable gold extraction from raw ores using alternative leaching reagentsPublication . Sousa, Rui; Regufe, Maria João; Fiúza, António; Machado Leite, Mário; Futuro, AuroraABSTRACT: Drawing on recent experimental and commercial developments, this review reappraises potential substitute leach reagents for cyanide in the gold mining sector. In addition to extraction, the application of these reagents in the gold processing, pre-treatment and gold purification stages is explored. The main objective here is to discuss how the gold extraction process can be more sustainable, with a view to developing more greener leaching reagents.